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United States Patent |
5,090,403
|
Bucher
|
February 25, 1992
|
Air bubble mat for air bubble massage device
Abstract
The invention relates to an air bubble mat for an air bubble massage device
having a single mat section extending over its entire length and width and
provided with openings, or having a plurality of individual mat sections
extending over its width and provided with openings, which mat sections
are lined up in the longitudinal direction of the air bubble mat, where
the single mat section or the individual mat sections form a receptacle on
their underside for receiving air feed ducts or air chambers, which air
feed ducts are provided with air outlets corresponding to openings of the
mat sections and are connected to a connecting stub or to a compressed air
distributor with a connecting stub. Construction with uncomplicated parts
and the simplest assembly possible are attained where the single mat
section or the individual mat sections merely provide a support element,
which has in its receptacle a one-piece or multi-piece foil mat, where the
sections of the foil mat are each put together from two foils placed on
top of one another, between which the air feed ducts or air chambers have
been defined by welding or other connections outside of the air feed ducts
or air chambers, where the air feed ducts or air chambers of the sections
of the foil mat are connected with each other and/or with the connecting
stub and where the air outlets are inserted in the foils of the section of
the foil mat facing the underside of the support element.
Inventors:
|
Bucher; Heinz (Rottweil, DE)
|
Assignee:
|
Metronic Electronic GmbH (DE)
|
Appl. No.:
|
585938 |
Filed:
|
September 20, 1990 |
Foreign Application Priority Data
Current U.S. Class: |
4/541.5; 601/168 |
Intern'l Class: |
A61H 009/00 |
Field of Search: |
128/65,66
4/542,543
|
References Cited
U.S. Patent Documents
1982259 | Nov., 1934 | Martin | 4/542.
|
4290982 | Sep., 1981 | Baumann | 4/542.
|
4409693 | Oct., 1983 | Baumann | 4/543.
|
4984583 | Jan., 1991 | Peterson et al. | 128/66.
|
Foreign Patent Documents |
1801813 | Dec., 1959 | DE.
| |
214064 | Mar., 1961 | DE.
| |
6750493 | Jan., 1969 | DE.
| |
6604416 | Jan., 1970 | DE.
| |
7332469 | May., 1974 | DE.
| |
7815777 | Mar., 1979 | DE.
| |
3305576 | Feb., 1984 | DE.
| |
3248842 | Apr., 1984 | DE.
| |
3538673 | May., 1987 | DE.
| |
1352270 | Jan., 1964 | FR.
| |
646864 | Dec., 1984 | CH.
| |
Primary Examiner: Hafer; Robert A.
Assistant Examiner: Hanlon; Brian E.
Attorney, Agent or Firm: Speckman & Pauley
Claims
I claim:
1. In an air bubble mat for an air bubble massage device having a mat
section extending over a length of said air bubble mat and a width of said
air bubble mat and provided with openings, where the mat section forms a
receptacle on an underside of said mat section for receiving air feed
ducts, where the air feed ducts are provided with air outlets
corresponding to the openings of the mat section and are connected to one
of a connecting stub and a compressed air distributor connecting stub, the
improvement comprising:
said mat section comprising a support element (10) having in said
receptacle an interchangeable foil mat (20),
said interchangeable foil mat (20) being assembled from two foils (21, 22)
placed on top of one another, having said air feed ducts (23) defined by
connecting means outside of said air feed ducts (23),
said air feed ducts (23) of said interchangeable foil mat (20) being
connected with each other and with said connecting stub (26),
said air outlets (24) being inserted in said foil (21) of said
interchangeable foil mat (20) facing the underside of said support element
(10) and forming an air bubble pattern, said air bubble pattern being
changeable by changing said interchangeable foil mat (20), and
said mat section forming a panel having sides extending in a longitudinal
direction of said air bubble mat and forming support fins (19) from said
mat which extend approximately vertically to said underside in an area of
said receptacle into which said interchangeable foil mat (20) is inserted.
2. An air bubble mat in accordance with claim 1, wherein said mat section
has support pins (18) with enlarged heads formed on said underside
inserted through holes (25) in said interchangeable foil mat (20).
3. An air bubble mat in accordance with claim 2, wherein said mat section
further comprises cover panels (30.1, 30.2, 30.3) enclosing said underside
of said mat section with said interchangeable foil mat (20) inserted in
said receptacle.
4. An air bubble mat in accordance with claim 3, wherein said mat section
has rows of said openings (13), said rows extending in a longitudinal
direction of said mat section and said air feed ducts (23) are distributed
correspondingly to said rows of said openings (13) extending
longitudinally on said interchangeable foil mat (20).
5. An air bubble mat in accordance with claim 4, wherein said mat section
is rounded on a first end and a second end of said support element (10),
said air feed ducts (23) on a rounded said first end of said
interchangeable foil mat (20) merge into said connecting stub (26)
inserted into said foil (21) facing said support element (10) which, where
said foil mat (20) is connected with said support element (10), extends
through a bore (12) in said mat section of said support element (10).
6. An air bubble mat in accordance with claim 5, wherein said air feed
ducts (23) are sealed on said second end of said mat section opposite said
first end of said mat section having said connecting stub (26).
7. An air bubble mat in accordance with claim 3, wherein said openings (13)
in said mat section are disposed in longitudinally and crosswise extending
rows,
said interchangeable foil mat (20) is correspondingly divided into a
plurality of air feed grids,
said air feed grids are connected through feed ducts (31, 32) to one of a
compressed air distributor (50) which is connected to said support element
(10) and said compressed air distributor connecting stub (51).
8. An air bubble mat in accordance with claim 7, wherein said mat section
is connected to at least one other mat section (11, 14, 16; 14.1, 14.2,
14.3) and to a compressed air distributor (50) by hinges (15, 17).
9. An air bubble mat in accordance with claim 8, wherein said air outlets
(24) are positioned in one of longitudinally and crosswise extending air
feed ducts (34, 35, 36; 37, 38, 39; 40, 41, 42) of said air feed grids and
two rim areas of said air feed ducts (23).
10. An air bubble mat in accordance with claim 8, wherein said openings
(13) in at least one of said mat section and each said other mat section
form longitudinally extending slits being one of tapered towards said
underside are reduced in width, and
said air feed ducts (23) have a row of air outlets (24) corresponding to
said slits.
11. An air bubble mat in accordance with claim 10, wherein said mat section
is plastic formed by one of injection molding and deep drawing.
12. An air bubble mat in accordance with claim 11, wherein said
interchangeable foil mat (20) is made of one of two rubber foils and two
plastic foils.
13. An air bubble mat according to claim 1, wherein said mat section has
support pins (18) with enlarged heads formed on said underside inserted
through holes (25) in said interchangeable foil mat (20).
14. An air bubble mat according to claim 1, wherein said mat section
further comprises cover panels (30.1, 30.2, 30.3) enclosing said underside
of said mat section with said interchangeable foil mat (20) inserted in
said receptacle.
15. An air bubble mat according to claim 1, wherein said mat section has
rows of said openings (13), said rows extending in a longitudinal
direction of said mat section and
said air feed ducts (23) are distributed correspondingly to said rows of
said openings (13), extending longitudinally on said interchangeable foil
mat (20).
16. An air bubble mat according to claim 1, wherein said mat section is
rounded on a first end and a second end of said support element (10),
said air feed duct (23) on a rounded said first end of interchangeable foil
mat (20) merge into said connecting stub (26) inserted into said foil (21)
facing said support element (10) which, where said foil mat (20) is
connected with said support element (10), extends through a bore (12) in
said mat section of said support element (10), and
rows of said openings (13) in said mat section are distributed
corresponding to said air feed ducts (23) connecting to said connecting
stub (26).
17. An air bubble mat according to claim 1, wherein said air feed ducts
(23) are sealed on a second end of said mat section opposite a first end
of said mat section having said connecting stub (26).
18. An air bubble mat according to claim 1, wherein said openings (13) in
said mat section are disposed in longitudinally and crosswise extending
rows,
said interchangeable foil mat (20) is correspondingly divided into a
plurality of air feed grids,
said air feed grids are connected through feed ducts (31, 32) to one of a
compressed air distributor (50) which is connected to said support element
(10) and said compressed air distributor connecting stub (51).
19. An air bubble mat according to claim 1, wherein said mat section is
connected to at least one other mat section (11, 14, 16; 14.1, 14.2, 14.3)
and to a compressed air distributor (50) by hinges (15, 17).
20. An air bubble mat according to claim 1, wherein said air outlets (24)
are positioned in one of longitudinally and crosswise extending air feed
ducts (34, 35, 36; 37, 38, 39; 40, 41, 42) of air feed grids and two rim
areas of said air feed ducts (23).
21. An air bubble mat according to claim 1, wherein said openings (13) in
said mat section form longitudinally extending slits being one of tapered
towards said underside and reduced in width, and
said air feed ducts (23) have a row of said air outlets (24) corresponding
to said slits.
22. An air bubble mat according to claim 1, wherein said mat section is
plastic formed by one of injection molding and deep drawing.
23. An air bubble mat according to claim 1, wherein said interchangeable
foil mat (20) is made of one of two rubber foils and two plastic foils.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to an air bubble mat for an air bubble massage device
having a single mat section extending over its entire length and width and
provided with openings, or having a plurality of individual mat sections
extending over its width and provided with openings, which individual mat
sections are lined up in the longitudinal direction of the air bubble mat,
where the single mat section or the individual mat sections form a
receptacle on their underside for receiving air feed ducts or air
chambers, which are provided with air outlets in the area of the openings
of the mat sections and are connected with a connecting stub or to a
compressed air distributor with a connecting stub.
2. Description of Prior Art
An air bubble mat of this type is known from German Utility Model DE-GM 18
01 813. In this case the air feed ducts are in the form of hose sections
which are brought into appropriate receptacles on the underside of the mat
sections and extend over the entire length of the air bubble mat. The
bubble pattern is limited to the longitudinally directed rows of air
outlets. The individual air feed ducts can be controlled and provided with
compressed air individually or in combination by means of a compressed air
distributor connected to one end of the air bubble mat, which compressed
air is supplied by a blower through a air hose which is inserted into the
connecting stub of the compressed air distributor.
The mat sections have been especially designed for receiving the
longitudinally directed hose sections. With such a design of the air
bubble mat, each new bubble pattern requires new mat sections which can
only be made with expensive tools. Furthermore, the assembly effort for
such an air bubble mat is comparatively great, because the hose sections
first must be provided with air outlets and then must be threaded into all
the mat sections.
SUMMARY OF THE INVENTION
It is an object of the invention to provide an air bubble mat of the type
described above, where the single mat section or the individual mat
sections can be simplified and used for a plurality of bubble patterns and
can be assembled with considerably less effort.
This object is attained according to the invention where the single mat
section or the individual mat sections merely comprise a support element
which has in its receptacle a one-piece or multi-piece foil mat, where the
sections of the foil mat are each assembled from two foils placed on top
of one another between which the air feed ducts or air chambers have been
defined by welding or other connections outside of the air feed ducts or
air chambers, where the air feed ducts or air chambers of the sections of
the foil mat are connected with each other and/or with the connecting stub
and where the air outlets are inserted in the foils of the section of the
foil mat facing the underside of the support element.
The single mat section or the individual mat sections are only used as
support elements so that in using the air bubble mat the user does not lie
on the sections of the foil mat, does not deform them and does not block
any air feed ducts and air outlets. The sections of the foil mat can be
simply and quickly manufactured from two foils, where by welding or other
connections alone it is possible to change the bubble pattern by means of
a changed distribution of the air feed ducts and disposition of air
chambers. These different foil mats are then buttoned or otherwise
fastened as a complete unit into the support element comprised of the
single mat section or the individual mat sections. If the individual foil
mat or a portion thereof has been damaged or destroyed, it can easily be
exchanged or replaced by a new air bubble mat or a new section, even, if
desired, with a new bubble pattern. The single mat section or the
individual mat sections are considerably simpler, because they no longer
require receptacles for threading in hose sections. Thus the air bubble
mat can be manufactured considerably cheaper.
According to a preferred embodiment of this invention, the single mat
section or the individual mat sections are made in the form of panels and
are provided, on the sides extending in the longitudinal direction of the
air bubble mat and in the area of the receptacle, with support fins formed
from the mat and extending approximately vertically to the underside.
It is also possible to produce the single mat section or the individual mat
sections by deep drawing from plastic.
If the single mat section or the individual mat sections are provided with
support pins with enlarged heads formed on the underside, on which the
sections of the foil mat provided with openings are buttoned or can be
buttoned, it is possible to produce the single mat section or individual
mat sections as injection molded parts from plastic. By a suitable
distribution of the openings in the sections of the foil mat it is
possible to connect the individual mat sections at a distance from each
other with the sections of the foil mat, so that the section of the foil
mat between the individual mat sections acts as a hinge and allows the air
bubble mat to be folded.
So that the sections of the foil mat are protectively disposed in the air
bubble mat, in accordance with a further embodiment, the open undersides
of the single mat section or individual mat sections are closed or can be
closed by means of cover panels or strips after the sections of the foil
mat have been inserted.
A simple bubble pattern with longitudinally oriented rows of air outlets is
provided where the single mat section or individual mat sections have rows
of openings extending in the longitudinal direction and where the air feed
ducts are correspondingly distributed and longitudinally extend on the
sections of the foil mat. The structural design in this case preferably is
such that the individual mat sections disposed on the ends of the support
element are rounded on their free ends or that the single mat section is
rounded on both ends, that the air feed ducts on a rounded end of the
section of the foil mats connect to a connecting stub inserted into the
foil facing the support element which, after the sections of the foil mat
have been connected with the support element, extends through a bore in
the facing individual mat section or the facing end area of the single mat
section of the support element, and that the rows of openings in the
facing individual mat element or the facing end area of the single mat
section follow the course of the air feed channels to the connecting stub.
A pressure build-up in the air feed ducts is assured in that the air feed
ducts are closed on the end opposite the end having the connecting stub.
In accordance with a further embodiment, a grid-like bubble pattern results
where the openings in the single mat section or individual mat sections
are disposed in longitudinally and crosswise extending rows, where
correspondingly the sections of the foil mat are divided in the
longitudinal direction into a plurality of air feed grids, where these air
feed grids are connected through feed ducts with a separate compressed air
distributor which is connected with the support element and where through
the compressed air distributor the air feed grids can be connected
individually and/or in combination with the connecting stub of the
compressed air distributor. In this manner, the air feed grids can be
optionally controlled.
If the individual mat sections are connected with each other and with the
compressed air distributor by means of hinges, the support element can be
prefabricated and equipped with any foil mat, which is only required to be
adapted in its size to the receptacle in the underside of the support
element.
In connection with straight air feed ducts, the air outlets are set in the
two rim areas of the air feed ducts or of the longitudinally and crosswise
extending air feed ducts of the air feed grids, so that the air bubbles
exiting the air outlets are not contained in the central area of the air
feed duct being located at the shortest distance from the opening, which
perhaps might be covered by the user, if it is intended to keep the
structural height of the air bubble mat low.
The single mat section or individual mat sections can also be adjusted to
the air feed ducts in such a way that the openings in the single mat
section or individual mat sections are in the form of longitudinally
extending slits which taper towards the underside or are reduced in width,
and that the air feed ducts in the area of these slits are provided with a
row of air outlets. In this case the air bubbles exiting the air outlets
directly reach the slit and are guided through it. It is possible to keep
the slits narrow enough, so that they are assuredly covered by the body of
the user.
Rubber or plastic foils are preferably used for manufacturing the foil mat.
The invention will be explained in detail by means of exemplary embodiments
shown in the drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a top view of a support element formed of three mat sections,
FIG. 2 is a top view of a foil mat which can be inserted into the
receptacle on the underside of the support element in accordance with FIG.
1.,
FIG. 3 is a schematic cross section of the air bubble mat with the support
element in accordance with FIG. 1 and the foil mat in accordance with FIG.
2.,
FIG. 4 is an enlarged partial section showing a mode of fastening between a
mat section and the foil mat,
FIG. 5 is a schematic bottom view of another bubble mat with three mat
sections and a compressed air distributor and a foil mat distributed in
the air feed grid,
FIG. 6 is a longitudinal section of the air bubble mat in accordance with
FIG. 5, and
FIG. 7 is an enlarged partial view showing a mat section, the foil mat and
the cover plate.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
In the exemplary embodiment shown in FIGS. 1 to 4, the support element 10
consists of three mat sections 11, 14 and 16. In this case, hinges 15
connect the mat sections 11 and 14 and hinges 17 connect the mat sections
14 and 16. The free ends of the mat sections 11 and 16, disposed on the
ends of the support element 10, are rounded off in a semicircular manner.
Four rows of rectangular openings 13 are arranged in the mat sections,
which are connected in a semicircular manner to each other in pairs and
concentric to each other in the mat sections 11 and 16, thus forming an
inner and an outer loop. The mat sections 11, 14 and 16 are provided on
their longitudinally directed outer rims, and the support section 11 and
16 on their end rims, with the support fin 19, by means of which they are
supported on the floor of the bathtub when the air bubble mat has been
placed into it. As the section in FIG. 3 shows, the support element 10
forms a receptacle over its entire length which is open towards the
underside of the support element 10.
The foil mat shown in FIG. 2, which in its shape and dimensions is adapted
to the shape and dimensions of the receptacle of the support element 10,
is inserted into this receptacle. The foil mat 20 consists of two foils 21
and 22 placed on top of each other, between which the air feed ducts 23
are defined by welding o other connection. The air outlets 24 are disposed
in the edge area of the air feed ducts 23 in the foil 21 facing the
underside of the mat sections 11, 14 and 16. Because the air feed ducts 23
follow the course of the rows of openings 13 in the mat section 11, 14 and
16, the air outlets 24 are aligned beneath openings 13, so that the
exiting air bubbles can reach the body of the user, lying on the support
element 10, without hindrance through the openings 13 of the support
element 10. The foil mat 20 is not weighted down and the air feed ducts 23
can expand in the way shown in FIG. 4., when the compressed air is
admitted. The foil mat 20 is simply buttoned into the receptacle of the
support element 10. For this purpose support pins 18 with enlarged heads,
for example, are formed on the underside of the mat sections 11, 14 and 16
and the foil mat 20 has correspondingly distributed holes 25. Because the
foil mat 20 preferably has foils 21 and 22 of rubber, it has sufficient
elasticity so that it can be buttoned on these support pins 18.
The air feed ducts 23 merge in a connecting stub 26, which has been
inserted into the foil 21. After insertion of the foil mat 20 into the
support element 10, this connecting stub 26 extends out of the bore 12 of
the mat section 11 and can receive the air hose feeding the compressed air
from the blower to the air bubble mat.
FIGS. 5 to 7 show another exemplary embodiment of an air bubble mat in
accordance with the invention. Three identical rectangular mat sections
14.1, 14.2 and 14.3 form the support element 10 in the longitudinal
direction. Connection of these mat sections is provided by the hinges 15
and 17. A compressed air distributor 50 is hinged on one end to the
support section 10, which contains the control valve 51, and is provided
with the connecting stub for the air hose.
As schematically shown in FIG. 5, the foil mat 20 has three sections
disposed as air feed grids, as shown by the longitudinally and crosswise
extending air feed ducts 34, 35, 36 or 37, 38, 39 or 40, 41, 42. The
compressed air distributor 50 contains a control valve 51, having three
control positions a, b and c. In control position a, the connecting stub
is connected through the control valve 51 and the feed duct 31 to the air
feed grid disposed in the area of the mat section 14.3. The feed duct 31
runs on an outer rim of the foil mat 20 along the air feed ducts assigned
to the mat sections 14.1 and 14.2. Thus, when compressed air is fed in,
air bubbles exit the foil mat 20 only in the area of the mat section 14.3.
In control position b, compressed air is fed through the feed duct 32 only
to the air feed grid underneath the mat section 14.2, and in the control
position c through the feed duct 33 only to the air feed grid underneath
the mat section 14.1. However, the control valve 51 can also be designed
such that in control position a the air feed grid underneath the mat
section 14.3 is provided with compressed air and bubbles, in control
position b the air feed grids underneath the mat sections 14.2 and 14.3
are provided with compressed air and bubble and, finally, in control
position c all air feed grids underneath all mat sections 14.1, 14.2 and
14.3 are provided with compressed air and bubble.
As shown in the section in accordance with FIG. 6, after the foil mat 20
has been inserted into the receptacle of the support element 10, the mat
sections 14.1, 14.2 and 14.3 are closed off with cover plates 30.1, 30.2
and 30.3, so that the foil mat 20 is protectively housed in the support
element 10.
As shown by the partial section in accordance with FIG. 7, the mat sections
may also have openings 13 in the form of longitudinal and/or crosswise
slits, which are very narrow and further taper in the direction of the
foil mat 20 or are set off in their width. The slits are oriented towards
the center of the air feed ducts 23, so that the air outlets 24 cut out
there extend congruently with the slits.
The openings 13 in the mat sections can be disposed in the shape of a grid,
so that the air feed ducts 23 can extend in any manner in the foil mat 20.
The air outlets 24 of the foil mat 20 ca then be correspondingly
distributed, but the division of the foil mat 20 into bubble areas can
also be provided in a different way. The foil mat 20 may also have bubble
areas distributed over the width of the air bubble mat.
This construction of an air bubble mat from a support element 10 and a foil
mat 20 results in components which are easy to manufacture and to
pre-assemble, so that they only need to be connected with each other in a
simple manner. It is also easy to replace the foil mat.
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